1138 state leaders - Events of 1139 - 1140 state leaders - State leaders by year

Africa

Asia

• China (Jin Dynasty) - Xizong, Emperor of Jin China (1135-1149)
• China (Southern Song Dynasty) - Gaozong, Emperor of Song China (1127-1162)
• Edessa - Joscelin II, Count of Edessa (1131-1149)
• Japan
  • Monarch - Emperor Sutoku, emperor of Japan (1123-1142)
  • Regent (Kampaku) - Fujiwara no Tadamichi, Sessho or Kampaku (1121-1158)
• Kara-Khitan Khanate (Western Liao) - Yelü Dashi, Emperor of Western Liao (1124-1144)
• Korea (Goryeo Dynasty) - Injong, King of Goryeo (1122-1146)
• Western Xia -
  1. Chongzong, Emperor of Western Xia (1086-1139)
  2. Renzong, Emperor of Western Xia (1139-1193)

Europe

• Aragon - Petronila, Queen of Aragon (1137-1162)
• England - Stephen, King of England (1135-1154)
• France - Louis VII, King of France (1137-1180)
• Holy Roman Empire - Conrad III, King of the Romans (1138-1152)
  • Holland - Dirk VI, Count of Holland (1121-1157)
• Holy See - Innocent II, Pope (1130-1145)
• Hungary - Béla II, King of Hungary (1131-1141)
• Portugal - Afonso I, King of Portugal (1139-1185)
• Wales (List of rulers of Wales)
  • Gwynedd - Owain Gwynedd, Prince of Gwynedd (1137-1170)
  • Powys - Madog ap Maredudd, Prince of Powys (1132-1160)